Genesis 17:15-17

World English Bible

¹⁵ God said to Abraham, “As for Sarai your wife, you shall not call her name Sarai, but her name shall be Sarah. ¹⁶ I will bless her, and moreover I will give you a son by her. Yes, I will bless her, and she will be a mother of nations. Kings of peoples will come from her.”

¹⁷ Then Abraham fell on his face, and laughed, and said in his heart, “Will a child be born to him who is one hundred years old? Will Sarah, who is ninety years old, give birth?”